86+94+82=262 is the age sum of two Li Bingbing, two Andy Lau and two Carina Lau, and the age sum of Li Bingbing, Andy Lau and Carina Lau is 262÷2= 13 1 (year).

Carina Lau's age: 13 1-86=45 years old.

Andy Lau's age: 13 1-82=49.

Li Bingbing's age: 13 1-94=37.